Lighting device



FIG. 1 is a front perspective view of a lighting device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view thereof, with portions of the lighting device in an alternate configuration.

The broken lines in the Figures show portions of the lighting device which form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 